Transcript Slide 1

A Descriptive Analysis of Active Shooter Events:
2000-2010
First Name / Last Name, Department of Criminal Justice - Texas State University
Active Shooter Event Criteria
• An active shooter event involves one or more
persons engaged in killing or attempting to kill
multiple people in an area occupied by multiple
unrelated individuals.
• At least one of the victims must be unrelated to the
shooter
• The shooting must not be a by-product of an
attempt to commit another crime.
• Even though gang-related shootings match the
definition, they are excluded because law
enforcement does not consider these an active
shooter event.
• Domestic murders are not included, unless the
shooter was in public and continued shooting
unrelated individuals (Blair, 2011)
Notable Active Shooter Events
• August 1, 1966 – A shooter opened fire from the
27th floor of the University of Texas Bell Tower. The
shooter killed 16 and wounded 31 in approximately
an hour and a half.
• October 16, 1991 – A shooter drove through a
window at a Luby’s cafeteria in Killeen, TX. The
shooter killed 23 and wounded 27 before three
police officers stopped him 10 minutes later.
• April 20, 1999 – Two high-school seniors executed a
well-planned attack on Columbine High School. The
shooters killed 13, injured 21, and committed
suicide in 47 minutes.
• April 16, 2007 – A senior at Virginia Tech University
chained the doors of Norris Hall and systematically
killed 32 and wounded 17 over the course of 10
minutes before committing suicide.
• July 22, 2011 – A shooter attacked a youth camp
located on an island in Norway. The shooter killed
69 on the island over the course of about 45
minutes before being stopped by law enforcement
Evolution of Law Enforcement Tactics
• Prior to The University of Texas Shooting of 1966 –
Law enforcement was without tactical units and
training to handle such events. After this, and other
national events, law enforcement developed SWAT
teams. Now, law enforcement would set a
perimeter and wait on SWAT to stop an event.
• After the Columbine Shooting of 1999 – Law
enforcement no longer sets a perimeter and waits
on SWAT. Now, patrol officers are trained to form a
response team, enter the event, and eliminate the
threat without waiting on SWAT.
Evolution of Law Enforcement Tactics (cont.)
Descriptive Analysis
Descriptive Analysis (cont.)
• Presently – The law enforcement community is
evaluating if training officers to enter events solo is
advantageous over forming a response team.
Possible Disadvantages of Solo Entry
• The solo officer has limited firepower
• The solo officer has to cover more fields of fire
• The solo officer lacks the physical and psychological
support of a team
Recent Attempts to Catalog Events
Secret Service, FBI, & DOE (2010)
• Focused on violence at Institutes of Higher Education
• Age distribution is bimodal
Number of victims shot in Active Shooter Events: By location and most powerful weapon
• Included all types of violence not just shootings
Location
Pistol
School
224
Office
49
Factory/Warehouse
12
Public
42
Military Base
43
Church
8
Retail
37
Other
4
*Percentages in parentheses
• Limited to schools…did not include other locations
(Drysdale et al., 2010)
NYPD (2011)
• Did include all locations in analysis instead of just
schools.
• Used weak criteria to include events in study.
Variables
• Relationship between shooter and victims. Coded as
employee, student, or no relation.
• How the shooter was stopped. Coded as subdued,
shot by police/citizen, arrested later, surrendered, or
suicide.
• Location of Event. Coded as public,
factory/warehouse, school, office, retail, military
base, or church.
• Mobility. Coded as either mobile or non-mobile.
• Weaponry. Broken down by the most powerful
weapon used: pistol, rifle, shotgun, or unknown.
• Explosives. Coded as either present or not present.
• Body armor. Coded as either present or not present.
(74)
(63)
(21)
(35)
(77)
(24)
(39)
(9)
Rifle
27
(09)
9
(11)
14
(24)
20
(17)
--9
(26)
40
(43)
11
(24)
Shotgun
33
(11)
6
(08)
14
(24)
6
(05)
--17
(50)
9
(10)
---
Unknown
18
(06)
14
(18)
18
(31)
52
(43)
13
(23)
--7
(08)
41
(67)
No of
Victims
303
78
58
119
56
34
93
46
Key Findings
Sample & Measures
Selection of Events (n=120)
• Lexis-Nexis was utilized as the primary search engine
• Search terms included: school shooting, office
shooting, mall shooting, and so on.
• Terms were coupled with month and year to be more
thorough (e.g., office shooting January 2000, office
shooting February 2000, etc.).
Cross Tabulation
• Active Shooter Events are not isolated to specific
locations
•
Ninety-four percent (n=113) of shooters are male
•
A single shooter is responsible for 97.5 (n=117)
percent of events
•
The shooter is non-mobile in 85 (n=102) percent of
event
•
There is no relationship between shooter and victims
in 53 percent (n=64) of events
•
Sixteen of the 44 (36 percent) school shooters were
orchestrated by adults (i.e., >25 years of age)
Future Research
• Official police reports need to be examined to
remove the unknown variables.
• Solo vs. Active Shooter Team needs to be examined
further
• Medical response during events needs to be
examined
• Law enforcement officers intervene in only 27
percent of the events. If “Suicide After Police” is
included as an intervention the total is 39 percent.
• Thirty-seven percent of the time suicide is the
outcome
Contact information
First Name / Last Name
Department of Criminal Justice
Texas State University
601 University Dr.
San Marcos, TX, 78666
E-mail: [email protected]